Table 1.

Sequence and structural similarities between Ulp1 proteinase and its closest ULP homologues

Ulp1 (1euv) compared to	Identical residues (Similar residues)	RMSD of WHWQC residues (all heavy atoms), Å	Backbone RMSD for 10 backbone contacts, Å
SSP8 (1xt9)	19% (35%)	0.28	0.23
SSP2 (1th0)	31% (55%)	0.47	0.29
AdenoV Core Protease (1avp)a	13% (34%)	0.7b	0.84

^aLower resolution structure (2.60 Å)

^bResidue corresponding to W168 is not conserved in AdV-CP